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Thread: What size slicks?

  1. #1
    Member JUNIOR BUILDER
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    What size slicks?

    I have a '66 Chevy II, tubbed in the rear with a 4-link. 3200 Pounds.

    Blown SBC, 630 HP, 605 TQ, TH-400

    I have a set of 15" x 15" rims. Plenty of room to run 33"x16"s.

    Question is, How wide is wide enough? Should I run 14's, 14.5's, 15's? I see people hooking with 10.5's with much more power. I would like to save money and use the rims I have, but how much is overboard?

    Is height any more a question than roll out and gear ratio?

    I assume D-5 compound or equivelent.

    Thanks again. Should have track pics within a month. Long time comin!

    Steve

  2. #2
    Senior Member EXPERT BUILDER
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    a 32x14 should do you just fine. What rear gear?

  3. #3
    Member JUNIOR BUILDER
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    3.50's right now. Waiting to see the first 1/4 mile results before I change them.

    Steve

  4. #4
    Senior Member RACING JUNKIE
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    Re: What size slicks?

    Quote Originally Posted by ssym
    I have a '66 Chevy II, tubbed in the rear with a 4-link. 3200 Pounds.

    Blown SBC, 630 HP, 605 TQ, TH-400

    I have a set of 15" x 15" rims. Plenty of room to run 33"x16"s.

    Question is, How wide is wide enough? Should I run 14's, 14.5's, 15's? I see people hooking with 10.5's with much more power. I would like to save money and use the rims I have, but how much is overboard?

    Is height any more a question than roll out and gear ratio?

    I assume D-5 compound or equivelent.

    Thanks again. Should have track pics within a month. Long time comin!

    Steve

    14x32's would work, but you mentioned that you wanted to run 15x15 rims. So your probably going to have to run a 16x33. Your tire needs to be an inch wider than your rim width.

  5. #5
    Member JUNIOR BUILDER
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    Any thoughts on the Hoosier Quick TIme Pro DOT tires? They make the same size as my street tires(31-18-15), just curious if they will hook on the track.

  6. #6
    Senior Member RACING JUNKIE
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    Quote Originally Posted by ssym
    3.50's right now. Waiting to see the first 1/4 mile results before I change them.

    Steve
    3.50's ??? Not a good starting point with a 33 tire. Just my opinion. Dave

  7. #7
    Senior Member EXPERT BUILDER
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    Quote Originally Posted by oldandtired
    Quote Originally Posted by ssym
    3.50's right now. Waiting to see the first 1/4 mile results before I change them.

    Steve
    3.50's ??? Not a good starting point with a 33 tire. Just my opinion. Dave
    x2 456 or even 488 would be my guess with a 33 inch tall tire
    Blowninjected 540 - when is going fast, Fast enough ?????

    http://www.racingjunk.com/profile/182079

  8. #8
    Senior Member DYNO OPERATOR
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    Quote Originally Posted by oldandtired
    Quote Originally Posted by ssym
    3.50's right now. Waiting to see the first 1/4 mile results before I change them.

    Steve
    3.50's ??? Not a good starting point with a 33 tire. Just my opinion. Dave
    Agreed. 3.50's are a waste of time. At 3200 lbs, you'll need a 5.13 or better with a 33" tire........my Vette with a 575-600hp sbc @2050lbs and a 4.88 gear turned about 7000 rpm at the stripe and 7700 on nitrous with a 33x16

  9. #9
    Senior Member RACING JUNKIE
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    Quote Originally Posted by ssym
    Any thoughts on the Hoosier Quick TIme Pro DOT tires? They make the same size as my street tires(31-18-15), just curious if they will hook on the track.
    They will not hook like a set of slicks. Unless I was running a class that demanded DOT tires, I would run slicks at the track.

  10. #10
    Member JUNIOR BUILDER
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    Thanks guys. I had 4:86's with a spool and put the 3:50's with a locker in for the street. Now I miss the track and plan on building a second third member with the spool and I don't know what gears. I redline at 6300 rpm and thought 4:86 might be a little steep for the 1/4 mile.

    Still not decided on what size slicks to run...

    I'll have money next week for them and the track soon after!

    Steve


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